diff mbox series

[v2,09/10] e1000e: Use PCI_EXP_LNKSTA_NLW & FIELD_GET() instead of custom defines/code

Message ID 20230913122748.29530-10-ilpo.jarvinen@linux.intel.com (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series None | expand

Commit Message

Ilpo Järvinen Sept. 13, 2023, 12:27 p.m. UTC
e1000e has own copy of PCI Negotiated Link Width field defines. Use the
one from include/uapi/linux/pci_regs.h instead of the custom ones and
remove the custom ones. Also convert to use FIELD_GET().

Suggested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/net/ethernet/intel/e1000e/defines.h | 2 --
 drivers/net/ethernet/intel/e1000e/mac.c     | 7 ++++---
 2 files changed, 4 insertions(+), 5 deletions(-)

Comments

Jonathan Cameron Sept. 13, 2023, 1:17 p.m. UTC | #1
On Wed, 13 Sep 2023 15:27:47 +0300
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> wrote:

> e1000e has own copy of PCI Negotiated Link Width field defines. Use the
> one from include/uapi/linux/pci_regs.h instead of the custom ones and
> remove the custom ones. Also convert to use FIELD_GET().
> 
> Suggested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

> ---
>  drivers/net/ethernet/intel/e1000e/defines.h | 2 --
>  drivers/net/ethernet/intel/e1000e/mac.c     | 7 ++++---
>  2 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
> index 63c3c79380a1..a4d29c9e03a6 100644
> --- a/drivers/net/ethernet/intel/e1000e/defines.h
> +++ b/drivers/net/ethernet/intel/e1000e/defines.h
> @@ -681,8 +681,6 @@
>  #define PCIE_LINK_STATUS             0x12
>  
>  #define PCI_HEADER_TYPE_MULTIFUNC    0x80
> -#define PCIE_LINK_WIDTH_MASK         0x3F0
> -#define PCIE_LINK_WIDTH_SHIFT        4
>  
>  #define PHY_REVISION_MASK      0xFFFFFFF0
>  #define MAX_PHY_REG_ADDRESS    0x1F  /* 5 bit address bus (0-0x1F) */
> diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
> index 5df7ad93f3d7..5340cf73778d 100644
> --- a/drivers/net/ethernet/intel/e1000e/mac.c
> +++ b/drivers/net/ethernet/intel/e1000e/mac.c
> @@ -1,6 +1,8 @@
>  // SPDX-License-Identifier: GPL-2.0
>  /* Copyright(c) 1999 - 2018 Intel Corporation. */
>  
> +#include <linux/bitfield.h>
> +
>  #include "e1000.h"
>  
>  /**
> @@ -25,9 +27,8 @@ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
>  		pci_read_config_word(adapter->pdev,
>  				     cap_offset + PCIE_LINK_STATUS,
>  				     &pcie_link_status);
> -		bus->width = (enum e1000_bus_width)((pcie_link_status &
> -						     PCIE_LINK_WIDTH_MASK) >>
> -						    PCIE_LINK_WIDTH_SHIFT);
> +		bus->width = (enum e1000_bus_width)FIELD_GET(PCI_EXP_LNKSTA_NLW,
> +							     pcie_link_status);
>  	}
>  
>  	mac->ops.set_lan_id(hw);
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h
index 63c3c79380a1..a4d29c9e03a6 100644
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -681,8 +681,6 @@ 
 #define PCIE_LINK_STATUS             0x12
 
 #define PCI_HEADER_TYPE_MULTIFUNC    0x80
-#define PCIE_LINK_WIDTH_MASK         0x3F0
-#define PCIE_LINK_WIDTH_SHIFT        4
 
 #define PHY_REVISION_MASK      0xFFFFFFF0
 #define MAX_PHY_REG_ADDRESS    0x1F  /* 5 bit address bus (0-0x1F) */
diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
index 5df7ad93f3d7..5340cf73778d 100644
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -1,6 +1,8 @@ 
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright(c) 1999 - 2018 Intel Corporation. */
 
+#include <linux/bitfield.h>
+
 #include "e1000.h"
 
 /**
@@ -25,9 +27,8 @@  s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw)
 		pci_read_config_word(adapter->pdev,
 				     cap_offset + PCIE_LINK_STATUS,
 				     &pcie_link_status);
-		bus->width = (enum e1000_bus_width)((pcie_link_status &
-						     PCIE_LINK_WIDTH_MASK) >>
-						    PCIE_LINK_WIDTH_SHIFT);
+		bus->width = (enum e1000_bus_width)FIELD_GET(PCI_EXP_LNKSTA_NLW,
+							     pcie_link_status);
 	}
 
 	mac->ops.set_lan_id(hw);